I have a new job as of a few weeks ago, and, unfortunately, a larger portion of my job is now helping people with Windows issues.

What I've noticed is how many people have the mouse welded to their hands. It amazes me how many people have to use the mouse. I get the impression that they'd type with it if they could.

For example, logging into a Windows machine usually looks like this:

Ctrl-Alt-Del
Move mouse to username entry field
Click
Type username
Move mouse to password entry field
Click
Type password
Move mouse to "OK" button
Click

Whereas when I do it, it's:
Ctrl-Alt-Del
Type username
Hit tab
Type password
Hit enter